Abstract:
ERBE_S4G_MFOV_NF_N10 data set consists of nonscanner, medium field-of-view data, processed using the numerical filter data reduction technique and averaged to a 5 degree grid scale nested with area weighting to 10 degree regions. Monthly (day), monthly (hour), daily, and monthly hourly averages are determined for each region. The data are represented as 8-, 16-, and 32-bit integers.

The Earth ... Radiation Budget Experiment (ERBE) is a multi-satellite system designed to measure the Earth's radiation budget. The ERBE instruments fly on a mid-inclination National Aeronautics and Space Administration (NASA) Earth Radiation Budget Satellite (ERBS) and two sun-synchronous National Oceanic and Atmospheric Administration (NOAA) satellites, NOAA-9 and NOAA-10. The NOAA-9 and NOAA-10 provide global coverage and the ERBS provides coverage between 67.5 degrees north and south latitude. Each satellite carries both a scanner and a nonscanner instrument package.

The nonscanner instrument contains four Earth-viewing channels and a solar monitor. The Earth-viewing channels have two spatial resolutions: a horizon-to-horizon view of the Earth, and a field-of-view limited to about 1000 km in diameter. The former are called the wide field-of-view (WFOV) and the latter the medium field of view (MFOV) channels. For each of the two fields of view, there is a total spectral channel which is sensitive to all wavelengths and a shortwave channel which uses a high purity, fused silica filter dome to transmit only the shortwave radiation from 0.2 to 5 microns. Because of the concern for spectral flatness and high accuracy, all five channels on the nonscanner package are active cavity radiometers.

The ERBE S-4G product contains averages of radiant flux and albedo on regional, zonal, and global scales. The data for the S-4G product are arranged by parameter values. ERBE S-4G MFOV product is available as a combination of the ERBS and NOAA-9 spacecraft. Products have been archived as a combination of ERBS and NOAA-9 from February 1985 through October 1986. MFOV measurements from NOAA-10 have not been archived.